better handling of version/patch especiallly for snapshots, use updateWorkDir

cmd/root.go

@@ -14,7 +14,7 @@ import (
 )
 
 const (
-	gVersion = "0.42d"
+	gVersion = "0.42g"
 	
 	// TODO : Get from $jail_zpool/defaults.json
 	MIN_DYN_DEVFS_RULESET = 1000
@@ -99,7 +99,11 @@ It support iocage jails and can coexist with iocage.`,
 		Long:  `Let this show you how much fail I had to get this *cough* perfect`,
 		Run: func(cmd *cobra.Command, args []string) {
 			fv, _ := getFreeBSDVersion()
-			fmt.Printf("GoCage v.%s on FreeBSD %d.%d-%s\n", gVersion, fv.major, fv.minor, fv.flavor)
+			if fv.patchLevel > 0 {
+				fmt.Printf("GoCage v.%s on FreeBSD %d.%d-%s-p%d\n", gVersion, fv.major, fv.minor, fv.flavor, fv.patchLevel)
+			} else {
+				fmt.Printf("GoCage v.%s on FreeBSD %d.%d-%s\n", gVersion, fv.major, fv.minor, fv.flavor)
+			}
 		},
 	}